二级出水水质对中试臭氧微滤工艺运行的影响

28320083ActaScientiaeCircumstantiaeVo.l28,No.3Mar.,2008:(No.20721140019);(No.2007DFA91520)SupportedbythetheNationalNaturalScienceFoundationofChina(No.20721140019)andTheChineseMinistryofScienceandTechnology(2007DFA91520):(1981),,,E-mai:[e-mail];*()E-mai:[e-mail]:ZhuHongtao(1981),male,Ph.D.candidate,E-mai:[e-mail];*CorrespondingauthorE-mai:[e-mail],,,.2008.-[J].,28(3):452-457ZhuHT,WenXH,HuangX,2008.Howwaterqualityofsecondaryeffluentinfluencestheperformanceofpilot-scaleozone-microfiltrationprocess?[J].ActaScientiaeCircumstantiae,28(3):452-457-朱洪涛,文湘华*,黄霞清华大学环境科学与工程系,北京,100084:2008-01-08:2008-01-17:,.21,TMP.:;,,.:;;;:0253-2468(2008)03-452-06:X703:AHowwaterqualityofsecondaryeffluentinfluencestheperformanceofpilot-scaleozone-microfiltrationprocess?ZHUHongtao,WENXianghua*,HUANGXiaDepartmentofEnvironmentalScienceandEngineering,TsinghuaUniversity,Beijing100084Received8January2008;accepted17January2008Abstract:Thewaterqualityhasastrongimpactonmembranefoulinginmicrofiltrationprocessofthesecondaryeffluent.Thisstudytestedthedead-endmicrofiltrationpropertiesofthesecondaryeffluentsfromtwowastewatertreatmentplantsandapilotscaleA2/Otreatmenttrain.TheTMPvariationsweretakenasthemembranefoulingindexes.Thewaterqualitywascharacterizedbythegeneralwaterqualityparameters,particlesizedistributionandfluorescencespectrumofdifferentorganiccompositionsafterresinseparation.Themainresultsare:particleconcentrationandparticlesizedistributioncontributealottoreversiblemembranefoulingoccurringinmicrofiltration;andtheorganicmaterialsinsecondaryeffluent,especiallyhumicsubstance,haveimportanteffectsonirreversiblemembranefoulingofmicrofiltration.Keywords:secondaryeffluent;microfiltration;particulatematter;organicmatter1(Introduction),,(Daiggeretal.2005;Huangetal.2000).(Boerlageetal.2002),.,,,.,2.07V,F2,1.36V128V.,3:-(,2003).-,,.,,.(1.44m3d-1),21,.2(Materialsandmethods)2.1试验流程和运行条件,1.B()G(A/OA2/O)1A2/O.1.,85%,Al2O330%..,(0.15m,0.85m).NGK,2.1Fig.1Schematicdiagramofthehybridceramicmembranemicrofiltrationprocess1Table1AveragevaluesofinfluentwaterqualityparametersforeachexperimentpHSS/(mgL-1)/NTUCODCr/(mgL-1)TOC/(mgL-1)UV254/cm-1NH+4-N/(mgL-1)TN/(mgL-1)TP/(mgL-1)B7.54283.641.8815.760.148038.8666.341.557.56308.7250.1618.540.174148.5459.541.25G7.5041.336.3815.250.13410.8817.211.767.634.41.333.497.720.11651.1818.342.74A2/O7.8051.434.506.220.13331.1129.925.857.7061.538.477.230.14054.2359.6410.142Table2Configurationofceramicmembraneusedinstudy/m/m/mm/m20.11612.50.48-,,.,PID,.(TMP,transmembranepressure)2.,25TMP,.:P25=Pmeasure0.0008935(1),.TMP,pH.(),.,...0.5MPa.,3md-1,1Lmin-1,15min.3.453283Table3Conditionsandparametersoftests/(m3m-2d-1)PACl/(mgL-1)[O3]/(mgL-1)/minB35309096.8%B3509096.8%G35209096.8%G3509096.8%A2/O35309096.8%A2/O35209096.8%2.2测试项目和方法TOCTOC-5000A();UV254DR5000(Hach);EyeTech(Ankersmid);-F-2500().,XAD-8(Amberlite,9nm,20~60).SS12m(Millipore).3(Results),.2~90~100minTMP.,()2TMPFig.2TMPvariationwithtime4543:-,..,.,TMPTMP,,.1,B2,(SS)(CODTOCUV254).GA2/O,,.,63,(2a2e),(2b2d),(2c2f).2a2e,B,,.,A2/O,,.2b2d,,,B..TMP60kPa(),5TMP20~30kPa.2a2c,TMP50kPa(2a30h2c60h),..2c2f,(2f),..(3),BGA2/O,0.2~70m.A2/O1mB,1mG.,A2/O,.,0.3~0.44(Foustetal.,1980),0.0384(Dullien,1979).,3,,,,.Zhu(2007).3Fig.3Particlesizedistributionofsecondaryeffluent2TMP,A2/O45528,.BGA2/O,..,4Fig.4Fluorescencespectrumofdifferentorganiccompositions4563:-GEx/Em=235~245nm/400~430nm,A2/O,.(Leenheeretal.,2003),.,GEx/Em=230~260nm/400~460nm,A2/O.(Chenetal.,2003),.,.,,.4(Conclusions)1)().2),50kPa,.3).,,.4),A2/O,G,..:感谢日本NGK公司提供其所生产的陶瓷膜和部分设备供本试验研究使用.感谢北京排水集团为本试验的进行提供了多处场地和试验用二级出水水源.:文湘华(1960),女,教授,博士生导师,主要从事环境生物技术和水污染控制工程技术的研究.E-mai:[e-mail]:BoerlageSFE,KennedyMD,DicksonMR,etal.2002.Themodifiedfoulingindexusingultrafiltrationmembranes(MFI-UF):characterization,filtrationmechanismsandproposedreferencemembrane[J].JMembrSc,i197:121ChenW,WesterhoffP,LeenheerJA,etal.2003.Fluorescenceexcitation-emissionmatrixregionalintegrationtoquantifyspectrafordissolvedorganicmatter[J].EnvironSciTech,34(9):18131820DaiggerGT,RittmannBE,AdhamS,etal.2005.Aremembranebioreactorsreadyforwidespreadapplication?[J].EnvironmentalScienceandTechnologyA-pages,39(19):399A406ADullienFAL.1979.Porousmedia-fluidtransportandporestructure[M].NewYork,London,Toronto,Sydney,SanFrancisco:AcademicPressPub,131137FoustAS,WenzelLA,ClumpCW,etal.1980.Principlesofunitoperations(2nded.)[M].NewYork:Wiley,711713HuangX,LiuR,QianY.2000.Behaviorofsolublemicrobialproductsinamembranebioreactor[J].ProcessBiochem,36:401406LeenheerJA,CroueJP.2003.Characterizingaquaticdissolvedorganicmatter[J].EnvironSciTech,37(1):18A26AXuXH,ZhaoWR.2003.Ozonetreatmentforwaterandwastewater[M].Beijing:ChemicalIndustryPress,4849(inChinese)ZhuHT,WenXH,HuangX.2007.Pre-ozonationforDead-endMicrofiltrationofSecondaryEffluent:SuspendedParticlesandMembraneFouling[A].The4thIWAInternationalMembraneConference:MembraneforWaterandWastewaterTreatment[C].Harrogate,UK:,.2003.[M].:,4849457